/// <summary>
/// Creates a new instance of an object to reflect the changes between the remote and local items.
/// This item includes the changes plus the primary key value (unchanged).
/// </summary>
/// <param name="item1">The <see cref="object"/> representing the remote item</param>
/// <param name="item2">The <see cref="object"/> representing the local item</param>
/// <returns></returns>
private object DBCreateUpdateItem(object item1, object item2, DBSchema schema)
{
// Get the type of model
Type modelType = item1.GetType();
// Create a new instance of the model
var updatedItem = Activator.CreateInstance(modelType);
// Test the property values
foreach (var prop in modelType.GetProperties())
{
if (schema.GetPrimaryKey(modelType) == prop)
{
prop.SetValue(updatedItem, prop.GetValue(item2));
}
else
{
switch (prop.PropertyType.ToString())
{
case "System.Guid":
case "System.Nullable`1[System.Guid]":
if (Guid.Parse(prop.GetValue(item1).ToString()).CompareTo(Guid.Parse(prop.GetValue(item2).ToString())) != 0)
{
prop.SetValue(updatedItem, prop.GetValue(item2) ?? prop.PropertyType.GetDefault());
}
break;
case "System.Boolean":
case "System.Nullable`1[System.Boolean]":
if ((prop.GetValue(item1) as bool?).GetValueOrDefault() != (prop.GetValue(item2) as bool?).GetValueOrDefault())
{
prop.SetValue(updatedItem, prop.GetValue(item2) ?? prop.PropertyType.GetDefault());
}
break;
case "System.DateTimeOffset":
case "System.Nullable`1[System.DateTimeOffset]":
if (DateTimeOffset.Compare((DateTimeOffset)prop.GetValue(item1), (DateTimeOffset)prop.GetValue(item2)) != 0)
{
prop.SetValue(updatedItem, prop.GetValue(item2) ?? prop.PropertyType.GetDefault());
}
break;
default:
if (prop.GetValue(item1) != prop.GetValue(item2))
{
prop.SetValue(updatedItem, prop.GetValue(item2) ?? prop.PropertyType.GetDefault());
}
break;
}
}
}
// Return the updated item
return(updatedItem);
}
/// <summary>
///
/// </summary>
/// <typeparam name="TModel"></typeparam>
/// <param name="action"></param>
/// <param name="item"></param>
/// <param name="schema"></param>
internal async Task RunAction <TModel>(DBAction action, TModel item, DBSchema schema) where TModel : class, new()
{
// Get primary key property info
var pk = schema.GetPrimaryKey(item.GetType());
switch (action)
{
case DBAction.Push:
await Push(item);
break;
case DBAction.Remove:
var rmethod = GetType().GetMethod(nameof(Remove));
var rgenMethod = rmethod.MakeGenericMethod(item.GetType());
Action <TModel> rwhere = i => pk.SetValue(i, pk.GetValue(item));
var t1 = (Task)rgenMethod.Invoke(this, new object[] { rwhere });
await t1;
break;
case DBAction.Update:
var umethod = GetType().GetMethod(nameof(Update));
var ugenMethod = umethod.MakeGenericMethod(item.GetType());
Action <TModel> uwhere = i =>
{
pk.SetValue(i, pk.GetValue(item));
foreach (var prop in i.GetType().GetProperties())
{
if (prop.GetValue(item) != null && prop != pk)
{
prop.SetValue(i, prop.GetValue(item));
}
}
};
var t2 = (Task)ugenMethod.Invoke(this, new object[] { uwhere });
await t2;
break;
default: break;
}
}